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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
If different processes are used to bring about the same chemical reaction, the enthalpy change is same for all of them. This is __________ law.

Lavoisier and Laplace
Hess's
Kirchoff's
None of these

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Chemical Engineering Thermodynamics
In the ammonia synthesis reaction, N₂ + 3H₂ ⇋ 2NH₃ + 22.4 kcal, the formation of NH₃ will be favoured by

Low pressure
High temperature
Both low temperature and high pressure
Low temperature only

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Chemical Engineering Thermodynamics
Any substance above its critical temperature exists as

Solid
Saturated vapour
Gas
Liquid

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Chemical Engineering Thermodynamics
The number of degrees of freedom at the triple point of water is

1
3
Zero
2

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Chemical Engineering Thermodynamics
High __________ is an undesirable property for a good refrigerant.

Viscosity
Specific heat
Specific vapor volume
Latent heat of vaporisation

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Chemical Engineering Thermodynamics
Helmholtz free energy (A) is defined as

A = H + TS
A = E - TS
None of these
A = H - TS

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